Metallic sash-joint.



w. ROP E'R METALLIC SASH JOINT.

APPLICATION FILED JAN.9. 1917. 1,242,242. Patented Oct. 9,1917.

2 SHEETSSHEET.I-

W. ROPER.

METALLEC SAS H JOINT.

APPLICATION FILED JAN-9.1817- Patented Oct. 9, 1917.

u 2 SHEETS-SHEET 2' attain. ,in-.;the followingainannerpreference 45 i *jiF-i gzfi iswawiew'.ofwthesame muntin illus Toal l 'wh 'om it stay. concern."

WILLInivr it"o rfnn, or rHI DELrHiA, PEnnsYLVAnrA, a

iyrnrnnt o sAsH oIn'rf 7 .Be it ,knownthat I,;.=WILLIAM RoPER,,la I citizen of the Unitedi;Statesyiresidingiaat Philadelphia, in :the county of Philadelphia and vState .of Pennsylvania, have invented certain-u new. and. useful Iniprovementsvin I MetallicfsashsJoints, .of I which the follow ing is a. specification.

My invention consists of an improved sash jointui One :ohjecticofviny intention is to provide a. strong; .and: durable sash j oint Which can be used advantageously-in I:the construction. of: metallic; window sash of diffeljentl typesiMyvinvention' is also adapt- I edfonfloor, pavemenhwyall, and ceiling construction Where it is; desired. to retain Stile,

glass, and -.marble slabs etc. i I

Another Iobject is to. so iconstruct. my .iinprovedi sash. joint that- :theJr'nuntins which comprise the same canibe 1 easily and. quickly joined together, and; whensojoin eda they pearance, ofsimpleconstruction,and ic'an be nanufacturedat a.loW-- cost.

lhese g-ObjBClZS, .;;and'.-=,- other' advantageous ends which will; be described; hereinafter, I

Figure lf-is a face YIBW'ShOWIIIgnEWQAmUILL tins joined .1 together; 1:111 accordance with; my

bein :had gtq the lacco np anying: drawings in i nvention- I Eig.;2 is} a side: elevation.- showingonezof thegmuntins illustratedwin Fig. loand drawn" nja;, s nal1erscale- 1 w :lSj: a..;;section Lon-:the iline': 3+3 of .;Eig.;;4;;.iS.-' 2 side elevatiommf ,theemuntin portions thereof bent out. z 'ofatheirnormal pqsitions.

i trated fin- Eigss-2} to 4';-inclusive shonzing the same -hent I inijaipositionsto i;receiye- ...a.

SQCQJIldEjlIlllllll'lIh as wilL hen-einafter he --;more' Specification of Letters fatent.

.,5 inclusiye.- II I r The head 3 extends at-either side or; the

leg to prov ide angular recesses 5 and p 6 1 to 'perInit the glazing of the sash ifthe lips, andlbrespectively,

inflthe present instance substantially Pasta oaa 9 I -Fig-. 8 is a sectiontaken on the 'iline 8-'8 of Fig, 1;

ig. 10 is a sectionon the of Fig.1. w

Referring tothe drawings, in'y iniproyed sashqolnt as illustrated-1n connection with Fig. 1, comprises two rnuntins 1 and 2 Which are preferably inade of I malleable I metal such-as iron I or steel, the inuntin having a head 3. Which;in I cross section extends transversely-of the elongated leg portion L -as. clearly- 5 illustrated in Fig'si I '2 to latterj iS to be used as a'window or ,to' per-- mit the 'insertionof tile, marble,-or other materjialif the lattenis' tO be used for other v purposesas above described. Both the head The-opening 7 includes an extension" which is cutj, directlyout ofthe leg 4:, I While the remaining-portion 9 'of 'saidjopening' is cut out of the head The-portion? 9" of g 3 and the leg 4 ex-tend' longitudinally I throughout the lengthiofthe inuntin and-in carrying out my inventidnytheununtinl is" v I saidfopening does not extend entirely to the outer edge surface l0 of said head but stops short thereof as clearly illustrated in' F ig.

the opening,7- and the edge surface10, and

- 2. A strip of met'alfll-thusreniains between:

this portion is split-orcut. at 12 to'forni'two crown =15 of the head 3.

directly at the I i The portion 9 of the-=opening 7JeXtends beyond-both sides ofjthe extension 8 and is of such shape, as Will hereinafter be-niore iully described, to permit the insertion of the head-'16 ofthemuntin=2,the latter being.

to the-head 3 ofthe-muntin 1-.1 V I v The lips 13*and 14: are bent outwardly as shown in Fig.4 a1idthe entirea-niuntin' is I I aleg: po r-tion which; is located centrally between the outer edges of the head 16 to pro-f similar vid'e recesses 18 and 19 to permit glazing described in connection with and 6 of the muntin 1.'

The crown 20 of the muntin 2 is notched at 21 and this notch is undercut or dovetailed, the flare of thedove-tailed notch bethe recesses ing in the direction of the depth of'the mun tin 2, as shown in Fig. 6. The leg 17 is also notched at 22 and this notch extends in wardly from the edge 23 a dlstance substantially equal to the width of thematerial 24 extending between the inner end 25 of the extension 8 of'the opening 7 1n muntin 1 and the adjacent edge 26 thereof. Furthermore, the notch 22 is in alinement with the dove-tailed notch 21.

The muntin 2 ,is inserted transversely within the opening 7 of the muntin 1, While the latter is in the position shown in Fig. 5, the notch 22 of the muntin 2 acting as a cavity into which fits the portion 24 of the muntin 1, thus permitting the edge 23 of the muntin. 2 to be substantially flush with i' the'edge 26 of the muntin 1 when thelatter is rebent into its normal position, such posi: tion being shown in Fig. 4.

It will thus be noted that the extenslon S of the opening 7 forms acavityfor receiving the portion 27 of the muntin 2, the head 16 of said latter muntin fitting within the remaining portion 90f said opening 'i After the muntins have been joined as just described, the lips 13 and 14 are hammered into the dove-tailed notch 21 of themuntin 2 and when thus hammered, the material 'which forms the lips 13 and 14 naturallyis ex; panded and fits said dove-tailed notch 21.

Fig. ,8 of the drawing shows the position of one of the lips prior t0 being hammered into the notch 21, while Figs. 1, 9, and 10,

' illustrate the lips; after they have 1386111121111".

mered into the notch 21. j

It will be noted that the outermost end of the dove-tailed notch 21 is of a Width suiiicient to receive the lips 13 and .14, and that the notch 21 is of less, depth than the thickness of the lips 13 and 14:,so that-when the lips are hammered into the notch 21,

. they will spread to fill the'undercutportion thereof, and the. outer edge surface 10 of said lips will be flush with the outer edge surface 28 of the muntin 2. l v

In other words, I can so proportion the amount of undercut of thenotch 21 thatthe difference in the thickness of thelips and 14 will be substantially equal to the amount of undercut of said notch 21;. This is clearly illustrated in Figs. 8 and 9. V

Fig. 9 shows the position ofo'ne of.the fingers before they are expanded, while Fig. 8 shows said finger in its expanded position.

From the above description, it will be understood that the finished joint willinclude muntins which neatly intersect: each other,

and are so joined that they are positively would be necessary to cut .the leg portions,

' since the lips are firmly embedded Within the dove-tailed notch. This construction adds greatly to the strength of the joints and is extremely practical for allpurposes where metallic frame. construction is required,- 1'

While I have described my invention as taking a particular. form, it will be understood that the various parts of myinvention' ,:,m'ay. .be. changed -without departing from the spirit thereof,'and hence I do not .locked,,, and to disconnect the muntins, it V limit myself to the precise construction set", I

forth, but consider that I am at liberty to make such changes and alterations as fairly come within the scope of they appended,

claims.

Having thus described my invention, what- I claim as new and desire to secure by Let ters Patent is: 1 v 1. A joint including. twomuntins, one

muntin having a dove-tailed notch flared inwardly in the direction of the depth thereof; r

the other muntin being designed to. straddle said first muntin and having lips designedito be forced through the narrow opening-of said notch and afterward expanded therein;

substantially as described. w A

2.v A joint including two munti'ns, one muntin having notches formed in opposite edges, one ofsaid notches being dove-tailed and flared inwardly in the direction of the depth thereof, saidsecond muntin having an opening terminatingin two lips' atone edge,

said opening being designed totransversely receive said first muntin, theportion of'said i,

second muntin between the opening and the f of the depth thereof,said. second' muijti 71? l having an opening terminating in two lips at one edge, sa1d opening being designed-to transverselyv receive said first muntin, {the portion of. said second muntin betweenthe opening and the edge opposite said first'dgei being designed to enterthe other of said notches in the first-mentioned muntin, said lips being designed to be forced and ex panded within said dove-tailed f11otch,*said p dove-tailed notch being-of less depth than the original thickness of thelips prior-"to their being forced and expanded therein, to permit the outer surfaces ofthe-lipstobeflush with the adjacent outer surface of tho adjoining muntin, substantially as described.

4. A joint including two muntins each 130.

having a leg portion,'and a head portion extending beyond said legportion to form recesses for glazing, the crown of the head of one of said muntins having a dove-tailed notch flared inwardly in the direction of the depth thereof, theleg portion of said latter muntin also having anotch extending inwardly from its outer edge, saidothermuntin having an opening in its head with an extension thereof into its leg, the portion of the opening in the head substantially corresponding in cross sectionwith the cross sec- 'tion of the head of said first muntin, the

crown of said second muntin being split inwardly from its outermost edge to said opening thereby providing lips, said lips leg of said beingdesigned to be forced through the narrow opening of said dove-tailed notch and afterward expanded, the material between the extension of said opening and the adjacent edge of the leg of said second muntin being designed to fit within the notch in the first muntin, substantially as described.

5. A joint including two' muntins each having a leg portion, and a head portion extending beyond said leg portion to form recesses for glazing, the crown of the head I of one of said muntins having a dove-tailed notch flared inwardly in the direction-of the depth thereof, said other muntin having an opening in its head with an extension there- Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

substantially as described.

tailed notch and afterward expanded therein,

6, A joint including two muntins, one I wardly in the direction of the depth thereof,

the other muntin, being designed to trans versely straddle said first muntin and having muntin having a dove-tailed notch flared in: I

a portion designed to be-forced through the narrow opening of said dove-tailed notch and afterward. expanded therein, substantially as described.

. 7. A joint including two muntins,

one

muntin having a notch therein flared in the direction of'the depth of said muntin, the

other muntin'being designed to transversely straddle said first muntin and having-lips 'designed to be'forc'ed within said notch, substantially as described.

8. A joint including two muntins, one i muntin having notches formed in its oppo site edges, said second muntin having an opening termin'atin'gin two lips at one edge, said opening being designed to transversely receive said first muntin, the portion of said second muntin betweenthe opening and the edge oppositesaid first edge being designed to enter'one of said notches in the first-mew tioned muntin, said lipsbeing designed to y be forced withinsaid other notch in the firstmentioned muntin, said latter notchbeing flared in the direction of the depth of'the muntin in which it isformed, substantially as described; I

In testimony whereofI havesigned my name to this specification in the presence of two subscribing witnesses. .7

Witnesses: 1

'OHAS. E. Poms, 'RHODA GILLms',

Washington, D. G3

- WILLIAM ROPEB'. 

